#GLF 1.0
#D Orthogonal sawtooth with expansion factor 25
#D Population is unbounded but does not tend to infinity.  Its graph is a
#D sawtooth function with ever-increasing teeth.  More specifically, the
#D population in generations t near 30 * 25^n is about 59t/225 if t is odd,
#D about 7t/10 if t is even but not == 46 (mod 60), and about 211t/900 if
#D t == 46 (mod 60); the population in generation 6 * 25^n - 1125 (n>=2) is
#D only 1846.  (Even more specifically, the population in generation
#D t = 30 * 25^n - 525 (n>=1), is 59t/225 + 1951.)
#D
#D A shotgun produces a salvo of 4 eastward lightweight spaceships every 120
#D generations.  Some are deleted; the others eventually catch up to a pair of
#D c/3 spaceships and reflect off the backs of them, forming westward
#D middleweight spaceships.  When a MWSS returns to the shotgun, it causes the
#D deletion of 5 salvos.  (Notice the unusual eatering of a pi heptomino, by 2
#D blocks, that's used in this deletion.) So the region between the shotgun and
#D the c/3s alternately becomes full and empty of spaceships.
#D
#D The c/3 spaceships were found by David Bell, who suggested this way of making
#D a sawtooth.
#D
#D Dean Hickerson, dean@ucdmath.ucdavis.edu  8/26/92
x = -185, y = -59, width = 370, height = 118
235boo$236bo$222bo15boo$220bobo15b3o11bo$166boo50boo18boo12bobo$166bo
45bo5boo16bo16bobo7bo$61bo40bo60boo15bo31boo4boo15boo16bobbo6boo$60bob
o38bobo46bo11b3o15bobo37bobo30bobo3bo4boo9bo$43boo14bo3boo36boobo7boo
34bobo12boo18boo37bo29bobo3boo4b3o7boo44bo$43bobo13bo3boo3boo19boo10b
oobobo5bobo24bo7bobo16bo16boo5bo44boo15bo11boo52bobo$44b3o12bo3boo4bo
19bo11boobo10bo22boo6bobbo16boo15boo4boo44bo27boo43boo6boo$34bo10b3o
12bobo38bobo8bobbo8bobbo9boo4bo3bobo30bobo80bo43bo8boo15bo31bo$34boo8b
3o14bo40bo12bo7boobboo7b3o4boo3bobo29bo125bo6bobboo15boo29bobo$43bobo
66bobo22boo11bo145boo8bo5boo4bobo13boo13boo15boo$43boo67boo24boo156bo
9bo5bo7bo13b3o11b3o14bo$139bo94boo71bo26boo9boboo17boo$234bo73boo23boo
10bobbo10bo5b3o$333bo11boboo9boo$208bo139b3o13bobbo$207b3o23b3o113boo
14bobo$31boo72bo127boo132bo$32bo71boo130boo128bo$32bobo6bo73bobo117b3o
126bobo$33boo4bobo71bo3bo116bobo81boo45bo$37boo15boo45boo10bo12boo31bo
47b3o12boo5boo3boo82bo46boo$37boo16bo45bobbo7bo14bo29bobo48bo13bo7bo$
oo23boo10boo18boo46bo7bo44boo204bobbo$bo23bo13bobo15b3o45bo7bo3bo36boo
161boobo47bo$bobo7bo10boo17bo15boo46bo9bobo36b3o161bobo44bobboo$bboo7b
obo7b3o10boo19bo7boo29boo5bobbo43bo3bobbobo161bo44b4o$14boo6boo11bo18b
oo7bobo27bobo5boo45boobboobboo160boo44boobo$14boo9bo39bo27bo58boo164b
oo45bobo$14boo9boo38boo25boo224boo45b3o$o10bobo352boo$3o8bo351boobo$3b
o60bo59bo59bo59bo59bo58bo$bboo61bo59bo59bo59bo59bo57bo$61bo3bo10bo44bo
3bo10bo44bo3bo10bo44bo3bo10bo44bo3bo57b3o$62b4o11bo44b4o11bo44b4o11bo
44b4o11bo44b4o60boo$73bo3bo55bo3bo55bo3bo55bo3bo105bobboo$74b4o56b4o
56b4o56b4o106bo$52boo311boo$bboo3boo25boo7boo6b3o310b3o$bbo5bo25bo9bo
5bobobbo3bo$35b9o6boobboobboo32boo$3bo3bobboo20b3obb5obb3o7boo32boobb
oobboo$4b3o4boo19bobbobb3obbobbo41bo3bobbobo$10bo22boo9boo48b3o$94boo
114bo6bo89bo$29boo178boobobboboo88bobo$28boo10bobo167bobobbobo89boo$
30bo8bobbo168bo4bo$25boo11boo10boo$7bo17bobo8boo3bo9bo10bo$5booboo6bo
11bo9boo21boo49boo75bo47boo$16boo7bobbo10bobbo17boo11bo38bo74bobo48bo$
4bo5bo17bo11bobo16b3o4boo3bobo29bo6bobo17bobo55boo48bobo$25bobo32boo4b
o3bobo30bobo4boo18bobbo17boo9boo75boo44bo$4boo3boo14boo25boo7boo6bobbo
16boo15boo7bo17boo6boo7bobbobo3bobobbo9bo109boo$51bobo8bo7bobo16bo16b
oo6bobo14bo3boo5bo7b3o9b3o8bo110bobo$51bo19bobo12boo18boo5boboo16boo
18boo5boo7bobbo4bo$50boo21bo11b3o15bobo6booboo13bobbo18bobb5obbo5boobo
bboboo$86boo15bo9boboo13bobo19boo7boo9boo$89bo19boo3bobo231b3o$89boo
17bobo4bo233boo$108bo54boo58boo58boo63bo$107boo53b4o56b4o56b4o61bobboo
$8bo153booboo55booboo5b4o46booboo5b4o54boo$7boo155boo58boo5bo3bo48boo
5bo3bo51b3o$235bo59bo51bo$234bo59bo52bo$347boobo$184boo164boo$184bo
122boo40b3o$150boo23boo5bobo27bo4bo90bo40bobo$151bo22bobo5boo26boobobb
oboo88bobo5boo30boobo$151bobo5bobo11bo36boo6boo89boo5bobbo28b4o$152boo
5bobbo10bobbo33b3o4b3o100bo9bobo16bobboo$103boo9boo46boo9bo146bo7bo3bo
19bo$103bobo7bobo44bo3boo8bobo7bo135bo7bo13bo5bobbo$94boo10bo8bo5bo25b
obo12boo11boo7boo38bo91bobbo7bo13boo$94bo8bobbo13bobo24bo3bo7bobbo20bo
bo3bo32bobo91boo10bo20boo$106bo13boobo10boo3boo10bo7bobo27boo30bobo17b
o86bo3bo16bo$103bobo14booboo7bobbo3bobo10bo57bo4boo3bobbo16boo88bobo
15bobo$103boo15boobo7bo7bo11bo37bo19boo4bo5bobo15boo77boo30bo$120bobo
8bo15bo3bo3boo31bobo18bobo10bobo13b3o9bo55bo12bo31bo$121bo9bo15bobo5bo
bo30bobbo32bo4bobo7boo8boo54boo42bobo$125boo5bobbo21bo31bobbo36boo9boo
106bobbo$124bobo7boo21boo48boo21bo10bo64bo$124bo64bo17bo97bobo41b3o$
123boo40boo22boo87b4o22bobbo42boo$164bo42bobbo62boo7bo20bobbo20boo20bo
$153boo8bo6bo6bo28bobbo63bo3boo3bo44bobo20boo$153bo9bo5boo4bobo28bobo
52boo15bobbo24bo10bo12bo7boo8bobo$163bo5bo3boo13bo18bo52bobbo41boo9bob
o8bobbo8bo9bo$164bo8boo12boo74bo52boobo10bo$165boo6boo32boo54bo52boobo
bo5bobo$175bobo29bo52boobo52boobo7boo$177bo58bo24bo44boo8bobo$235boo
68bobo9bo$219bo14boo8boo59bo$217bobo13b3o9bo16bo41boo$210bo5bobo15boo
25boo$210boo3bobbo16boo$216bobo17bo$217bobo$219bo73bo$263bo29bobo$263b
oo14boo15boo$249boo28bo16boo4boo$249bobbo23boo18boo5bo$240boo11bo13bo
7b3o15bobo$240bo12bo12b4o6boo15bo$253bo11boobobo8bo$249bobbo11b3obobbo
7boo$249boo14boobobo$266b4o$267bo!
